Description: Sprocket transfers engine power to the link assemblies and engage the link assembly to create motion.Attributes:• Material: Steel• Hardened• Sprocket Teeth: 13 (2X)• Internal Spline Number of Teeth: 56• Hub Width: 65.53 mm (2.5799 in)• External Pitch Diameter: 132.66 mm (5.222 in)• Internal Pitch Diameter: 59.258 mm (2.332 in)Application:Consult your owner's manual or contact your local Cat Dealer for more information.